Reddit mentions of Furman Power Conditioner (M8DX)

For the microphone stand if you ever wanna change it...

https://www.sweetwater.com/store/detail/PSA1Rode--rode-psa1-professional-studio-boom-arm

These are excellent, I'm pretty sure Joe Rogan uses these now... can't remember. And he uses the SM7B so that was a noteworthy mention in your post.

For your other stuff...

https://www.amazon.com/dbx-166xs-Professional-Compressor-Processor/dp/B004NDJRKO/

Pick up one of these one day. You don't seem to use a limiter, your strip doesn't have one, and this will handle that, and this would solve the volume extremities issue with your stream where my wife gives me that look because you start yelling at some alt-right dipshit after I could barely hear you talking a second earlier. Thanks.

Then I would change out your mixer one day. It might have some noise you aren't happy with in the preamps (maybe not), and if so try one of these out. Allen and Heath is famous for having completely perfect preamps

https://www.sweetwater.com/store/detail/ZED60-10FX--allen-and-heath-zed60-10fx-mixer-with-usb-and-effects

They make a much smaller one as well if you don't need that many channels, obviously.

https://www.sweetwater.com/store/detail/ZED6FX--allen-and-heath-zed-6fx-mixer-with-effects

But I'm not sure if it's up to the same standards and if you do that deal where you send some audio back in from the mic out on the computer, I always forget the terminology that podcasters made for that trick. Basically to isolate who is talking to you and put it into the mixer directly and you hear it and your audience hears it, and you can turn them down, etc... On my allen and heath I had to mess with it a bit to make that work right. Something to consider.

If you don't already use a RACK, might as well.

https://www.amazon.com/StarTech-com-Desktop-Frame-Components-RK8OD/dp/B01NBPL8OP/

And I'd advise something like a power conditioner in the rack as well, keeps the gremlins out. I'm paranoid about sound, I use their cheaper power strips for my setup and it feels like it makes a difference, but maybe I'm tricking myself.

https://www.amazon.com/Furman-Conditioning-Outlets-Spacing-Voltmeter/dp/B00145EVJ6/

Just little things, but they probably won't be worth it overall. Stuff you might add to an amazon list or something. I'm a list guy. ;)

Furman M-8Dx Merit Series Power Conditioning, 15 Amp, 9 Outlets with Wall Wart Spacing, Pullout Lights, Digital Voltmeter https://www.amazon.com/dp/B00145EVJ6/ref=cm_sw_r_awd_R6FRub1R3NDCV

Best investment you can make to protect your gear. Along with a UPS to protect from brown outs.